55395313 has 2 divisors, whose sum is σ = 55395314. Its totient is φ = 55395312.

The previous prime is 55395311. The next prime is 55395323. The reversal of 55395313 is 31359355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34492129 + 20903184 = 5873^2 + 4572^2 .

It is a cyclic number.

It is not a de Polignac number, because 55395313 - 2¹ = 55395311 is a prime.

Together with 55395311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (55395311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27697656 + 27697657.

It is an arithmetic number, because the mean of its divisors is an integer number (27697657).

Almost surely, 2^55395313 is an apocalyptic number.

It is an amenable number.

55395313 is a deficient number, since it is larger than the sum of its proper divisors (1).

55395313 is an equidigital number, since it uses as much as digits as its factorization.

55395313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30375, while the sum is 34.

The square root of 55395313 is about 7442.8027650879. The cubic root of 55395313 is about 381.2041970237.

The spelling of 55395313 in words is "fifty-five million, three hundred ninety-five thousand, three hundred thirteen".